VDB
CVE-2020-27796
CVE-2020-27796
PUBLISHED
CVSS 7.800000190734863 HIGH
A heap-based buffer over-read was discovered in the invert_pt_dynamic function in p_lx_elf.cpp in UPX 4.0.0 via a crafted Mach-O file.
EPSS 0.33% · 24.5th percentile
Risk Scores
CVSS 3.1
7.800000190734863
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
EPSS Score
0.33%
24.5th percentile
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Ubuntu:20.04:LTS | upx-ucl | 3.95-2build1, 3.95-2, 0 |
| Ubuntu:25.10 | upx-ucl | 4.2.4-1, 0, 4.2.4-1.1 |
| Ubuntu:18.04:LTS | upx-ucl | 3.94-2, 0, 3.94-4 |
| Ubuntu:24.04:LTS | upx-ucl | 3.96-3, 4.2.2-3, 0 |
| Ubuntu:22.04:LTS | upx-ucl | 0, 3.96-3, 3.96-2 |
| Ubuntu:16.04:LTS | upx-ucl | 3.91-1, 0 |
Timeline
- Aug 25, 2022 CVE Published
- Aug 26, 2022 EPSS Score
- Oct 11, 2022 EPSS Score
- Nov 26, 2022 EPSS Score
- Jan 11, 2023 EPSS Score
- Feb 26, 2023 EPSS Score
- Mar 7, 2023 EPSS Score
- Apr 13, 2023 EPSS Score
- May 29, 2023 EPSS Score
- Jul 14, 2023 EPSS Score
- Aug 30, 2023 EPSS Score
- Oct 15, 2023 EPSS Score
References
- https://ubuntu.com/security/CVE-2020-27796 third-party-advisory
- https://github.com/upx/upx/issues/392 third-party-advisory
- https://github.com/upx/upx/commit/7d093174597483053e95f07d9f4614024c09890e third-party-advisory
- https://www.cve.org/CVERecord?id=CVE-2020-27796 third-party-advisory